Improvement in clamps for elevating well tubes and rods



UNITED .STATES PATENT ADAM GOOD, JR., OF TITUSVILLE, PENNSYLVANIA.

IMPROVEMENT IN CLAMPS FOR ELEVATING WELL TU'BES AND `llODS.

Specification forming.,r part of Letters Patent No. 98,459, dated December 28, 186i).y

To all 'whom it may concern:

Be itknown that I, ADAM GOUD, Jr.,`ot` Titusville, in the county of Bradford and Statel -part of this specification.

My invention relates toaolass of clamps used in oil-wells for .lifting tubes or pump-rods into or outot' said wells in less time,with more saving of labor, and with better security against occasional slipping and dropping of tubes or rods from their hold into the well, thereby saving great expense tothe operators.

ln the annexed drawings, Figure 1 is a top view of my clamp. Fig. 2 is a perspective view of my clamp. Fig. 3 is a double-eccentric wrench for keeping.,r tubes from turning. Fig. 4 is a view of a detachable clamp for square rods. Fig. 5 shows an 'attachment tofprevent tubes from slipping.

ln the drawings, A represents a stirru p,wh ich is suspended by a vertical swivel, b, and ring' l. This stirrup A ends with two bearings, o n', which reoeivethe journals of a clamp, C, withan opening large enough to lit the largest size of tubes used in oil-Wells. One part, C', of said clamp is movable 011 a vertical hinge, c, so that the whole clamp can be opened to admit a pipe sidewise. vThe movable part C is looked by a spring-bolt, D, inserted into'the journal c in an axial direction. Fig. l shows the journal c' in section, exposing the springholt l), with its step d' and spring d2 around the step. The spring d2 bears against ashoulder, d", at the end of journal, cand againstthe lshoulder of holt D, caused by the step already mentioned, thereby forcing the bolt into the hole ciin the movable part C', which keeps the whole clamp locked. There is an inclined notch, c2, at the end of C', against which the end ofthe spring-boltslides when C'is being closed. lhus the. opening of the spring-bolt byhand is not necessary when the clamp is to be closed. 'l'o open said clamp O the spring-bolt D is pulled back by a knob or handle, d, until it ha cleared the hole c3. lheu C may be turned open. As the clamp C has to support a considerable weight, 1 strengthen the movable part C' by providing it with a bearing-block,

c, near the'hole c3, which tits into a receiving notch, o9, in the clamp G, and in this manner relieves C from all strain. The clamp G is also provided with several lugs, c, c4, and c5, for the purpose of receiving several pivoted or hinged wrenches or other implements for working tubesor rods. -The drawings show two such sucker-rod` clamps and wrenches, E E'. The wrench E is hinged at csfso that it may be swung back and olf the opening in the clamp when not wanted. It is provided with a ange, that rests on top of the clamp C when used, and with an offset, c, which fits the hole in said clamp. The slotin clamp E is to fit the sucker-rod and I intend to have a series of such clamps with slots of di'erent sizes,which ma y .easily be exchanged by taking out the pin c6.

The clamp Cwith clamp E together also serve in the capacity ot' a screw-wrench by turning the stirrup A over into a horizontal position and making a. lever of it for holding the suckerrod tightly while connections or disconnections are being made. Clamp E in Fig. 4 is hinged to a round shank, ez, which fits into a vertical hole in lug c5. It is otherwise of the same construction asv clamp E, excepting, perhaps, a larger or smaller sized slot.

To prevent the sudden slipping of any of the tubes through the clamp C bel'ore it is iu position, I make use ot' a catch, E, as seen in Fig. 5, which bears with its own weightagainst 'the pipe in an inclined position. vrl'nis catch has a semicircular edge, which impinges upon the surface of the tube as soon as it starts downward, and is carried down a little distance with it, whereby the catch E ,is forced with its shank against the lug ci and the tube against the opposite side of the clamp C. .This

will'effectually jam the tubo and arrest its further progress.

llt' a tube is to be held rmlyin the clamp C, so as to keep it from turning around, I make use of a serrated double camhead wrench, F, with a fnlcrum-pin, f, which is inserted into the alreadymentioned hole in lug c5. The ratchet-teeth on cam f' point to the left, and

`when in contact with the pipe-coupling will prevent its turning toward the left side, and viceversa with the cam f2, as is shown in Fig. 5. The catch H may have more than one edge, as shown by f, to make it more effectual. The cams f' and j'z on the wrench F are ecceu` tric, increasing their diameters toward the outside. This serves to jam the tube in a lateral way, and to keep it rigid for the purpose of screwing onto or unscrewing pipes or tubes from their couplings.

The flanges Cz C? are for the purpose of setting on the top partof aso-called casing tee or T, as is used on top of wells while they are being pumped. There are also two lugs, c4 v c5, at the bottom part of the clamp C, which bear right and left inside of said casing T, to keep the clamp C in a central position.

The operation of my clamp is evident the specificatioxnso I do not deem it necessary to repeat what I specified already.

I claim as my invention- 1. The tube-clamp C, constructed, as described, with a hinged part, C', in such manner that the whole clamp can be opened for thepurpose of admitting the tube or pipe within thc clamp sidewise, and locked together so as to complete the circle of the clamp, substantially as hereinbeforc described.

2. In combination with a clamp having a hinged section, C', as described, the springbolt D, inserted in the journal c' in an axial direction, for the purpose of locking the hinged section C' to the fixed part Cwhen the tube is embraced between them, substantially as before described.

3. The hinged section C of the clamp, provided with a bearing-block, c, in connection with a receiving-notch, cg, in the fixed part C, for the purpose of supporting the hinged section and relieving it from strain when the two parts are locked together, as before described.

4. The combination of a hinged sucker-rod 'wrench,1}, with aclamp constructed with a from` hinged and fixed section, C and C,substan tially as before described.

5. The sucker-rod wrench E, hinged to the clamp so that it may be turned over or swungr back oi the opening in the clamp when not 'desired for use, substantially as before described. v

6. The socket G5 for the reception of asucker-rod wrench, which may thus be connected to the clamp so that it may beremovcd therei from and replaced by another having alarger or smaller opening to suit different sizes of sucker-rods, as hereinbefore described.

7. The clamp constructed with one vor more lugs, c4 e", for the ypurpose of receiving the arresting-catch II and the cam-head-wrench F and the wrench-clamps E El, in the manner and for the purpose hereinbefore described.

S. The combination of an elevatingsw-iveled tubeclamp,C C', with a hinged tubecatch,ll,

operating in the manner substantially as herethc--swiveled ring B, the whole constructedh and arranged substantially `as before described.

ADAM GOOD, JR.

WVitnesses FRED. ARTOs, WM. H. Rown. 

